UISegmentedControl*codeButton;
codeButton =[[UISegmentedControl alloc]initWithItems:[NSArrayarrayWithObject:@"MyButton"]];//一个item
codeButton.frame= CGRectMake(60, 200,200, 50);
codeButton.segmentedControlStyle= UISegmentedControlStyleB
codeButton.momentary = YES;
codeButton.tintColor = [UIColorredColor];
// [codeButton addTarget:selfaction:@selector()forControlEvents:UIControlEventValueChang
[viewaddSubview:codeButton]